Topic 2 Vocabulary

Front

parallel

Back

lines that never intersect and have the same slopes

Front

quadrants

Back

four regions into which a coordinate plane is divided

Front

point-slope form

Back

y - y1 = m(x - x1)

Front

x-intercept

Back

where the line crosses the x-axis

Front

perpendicular

Back

lines that form right angles and have opposite reciprocal slopes

Front

slope

Back

the steepness of a line, calculated as rise over run (change in y over change in x)

Front

y-intercept

Back

where the line crosses the y-axis

Front

linear equation

Back

an equation whose graph is a straight line, typically in the form y = mx + b

Front

coordinate plane

Back

a two-dimensional surface formed by the intersection of a horizontal axis (x-axis) and a vertical axis (y-axis)

Front

origin

Back

the point (0, 0) where the x-axis and y-axis intersect